Updating to 15.6.2 and Battlegrounds Performance

[Rhasimir-1573]

Overkill was fixed already, some time round the middle of last week:

@Chris_Attalus

Here are some things that have been resolved with a server patch ( meaning you don’t have to download it ) that’s already live:

• Spells now trigger Overkill effects
• Sathrovarr can now no longer target enemy minions with its Battlecry
• New Daily Quests can be obtained
• Big Boss Battle Quest can now be completed by just playing two matches and should only be accessible by players with Battlegrounds access